Equations practice problems - page 61 of 241
Number of problems found: 4808
- The noon-time
The noon-time temperature was 29°F. It was 4°F lower than predicted. Write and solve an equation to determine the predicted noon-time temperature. - In a bakery
In the bakery, a bun costs 2 CZK more than a roll. Petr bought 4 buns and 8 rolls and paid the exact amount of 62 CZK for this purchase. a) Calculate the price of one bun in CZK. b) Calculate in CZK how much Petr would pay to buy 2 buns and 2 rolls. c) De - Consecutive 68154
Determine the group of numbers for which the following relations hold: a) The sum of the searched three consecutive even numbers equals 978. b) The sum of the searched four consecutive odd numbers equals 312. - Represent 68124
Girls are 12 more than boys, and boys represent 30% of all students. Find how many girls are in the class. - Agreement 68094
Janka and Katka live in villages 16 km away. They agreed to meet precisely halfway. Jana was driving at a speed of 4 km/h. Katka came out 30 minutes later. At what speed must Katka drive to fulfill the agreement? - Triples
The triplets Jana, Jan, and Jitka have saved a total of 180 CZK. Jana has saved three times as much as each of her two siblings. Jitka and Jan have saved the same amount. a) Determine the ratio of the amounts saved by all three siblings in the order Jan, - Principal 67954
How long in months will the principal raise 5,000 euros at 5% p.. a. interest 350 euros? - Mr. Fish
Mr. Fish paid 1,080 CZK for the purchase of three Christmas carpets. The difference in weights (in this order) between the first and second carp and between the second and third carp was exactly 80 dag. The price of 1 kg of live carp was 120 CZK. a) Calcu - From peanuts
From peanuts priced at 160 CZK/kg and almonds priced at 200 CZK/kg, 20 kg of a nut mixture priced at 190 CZK/kg is to be prepared. The price of the mixture is determined by the ratio in which the nuts are mixed. a) Determine how many kilograms of each typ - Collection 67874
In his stamp collection, Radek had half of the Czech stamps, a third of Slovak stamps, and just 128 overseas stamps. Radek did not collect any other stamps. Calculate how many stamps Radek had in the collection. - Calculate 67864
The price of one piece of goods is 450 CZK, and the price of transport is 90 CZK. They paid Svoboda a total of CZK 10,440 for the shipment. Calculate how many pieces of goods they ordered Svoboda. - Alloy Cu+Pb
An alloy of copper and lead is a mixture of these metals in a ratio of 5:2 (respectively). Calculate in kg how much a piece of this alloy weighs if it contains just 150 kg less lead than copper. - Relative motion
The boat moves along the river at a speed of v1 = 5km/h and upstream v2 = 2km/h What is the current P's and boat L's speed relative to the water? - Midnight 67644 The bacteria in the test tube divide into two every second, with each new one having the same volume as the original. At exactly midnight, the test tube was full. At what time was the test tube half full?
- Temporary 67594
Two temporary workers comb apples from 15 apple trees in 5 hours and 20 minutes. After two hours, three other temporary workers came to help them. How long did it take to comb apples from these 15 trees? - Peter 67584
Peter was twice as old as Pavel. 4 years ago, Petr was three times older than Pavel. How old are they now? - The number 5
The number of hours per week the television is turned on is determined for each family in a sample. The mean of the data is 35 hours, and the median is 31.2 hours. Twenty-four families in the sample turned on the television for 20 hours or less for the we - Discount 67354
Skates have fallen by 36% after the winter season on sale. Their price after the discount was 48 euros. What was the original price? - Temperature linear fit At 2:00 a.m., the temperature was -7°F. At noon the temperature was 18°F. What expression represents the increase in temperature?
- Two-thirds 67134
Find a number whose two-thirds are two less than its three-quarters.
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